/*

     File: PhotoViewController.m

 Abstract: View controller that configures and displays an image inside a UIScrollView.

  Version: 1.1

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 */

#import "PhotoViewController.h"

#import "ImageScrollView.h"

#import "PageViewControllerData.h"

@implementation PhotoViewController

+ (PhotoViewController *)photoViewControllerForPageIndex:(NSUInteger)pageIndex

{

    if (pageIndex < [[PageViewControllerData sharedInstance] photoCount])

    {

        return [[self alloc] initWithPageIndex:pageIndex];

    }

    return nil;

}

- (id)initWithPageIndex:(NSInteger)pageIndex

{

    self = [super initWithNibName:nil bundle:nil];

    if (self != nil)

    {

        _pageIndex = pageIndex;

    }

    return self;

}

- (void)loadView

{

    // replace our view property with our custom image scroll view

    ImageScrollView *scrollView = [[ImageScrollView alloc] init];

    scrollView.index = _pageIndex;

    self.view = scrollView;

}

- (void)viewWillAppear:(BOOL)animated

{

    [super viewWillAppear:animated];

    // set the navigation bar's title to indicate which photo index we are viewing,

    // note that our parent is MyPageViewController

    //

    self.parentViewController.navigationItem.title =

        [NSString stringWithFormat:@"%@ of %@", [@(self.pageIndex+1) stringValue], [@([[PageViewControllerData sharedInstance] photoCount]) stringValue]];

}

@end